14 BOTANICAL GAZETTE. [ January, 
be very happy, oh being applied to (Nachtegaalstraat 32), t0 
_send them a specimen. It is no doubt an inconvenience of 
this method that the observer must wait for some days before 
he can make his sections. his, however, is no serious ob- 
jection, as the operations described take up but very little of 
is time, so that he may do other work whilst his objects 
are getting ready for imbedding. Moreover, if many objects 
are to be treated in this manner, it will be easy, by a regular 
distribution of labor, to have always material ready for ex- 
amination, ther objects fit for trying the imbedding method 
on are the growing points of the stems of Vicia Faba, Elodea 
Canadensis, sculus Hippocastanum, Acer pseudoplatanus, 
Equisetum, etc. I also obtained very beautiful specimens 
by making longitudinal and transverse sections of whole 
plants of Mnium hornum, the first showing the antheridia 
_ and archegonia, the second showing very plainly the dispo- 
_ sition of the leaves and their development. , 
Utrecht, Holland. 
BRIEFER ARTICLES. 
heir esteem and respect. Later observa- 
wee ‘us Tungns to be wideiy distributed over the country east 
of the Mississippi and westward to Texas, Under special conditions it 
does much damage to the Crop, attacking the berries during the period - 
of ripening, 
